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From: Balazs Nemeth <balazs.nemeth@intel.com>
To: dev@dpdk.org
Cc: Balazs Nemeth <balazs.nemeth@intel.com>
Subject: [dpdk-dev] [PATCH 3/4] lib/librte_table: Fix incorrect t->data_size_shl initialization
Date: Thu, 11 Sep 2014 19:47:20 +0200
Message-ID: <1410457641-3540-4-git-send-email-balazs.nemeth@intel.com> (raw)
In-Reply-To: <1410457641-3540-1-git-send-email-balazs.nemeth@intel.com>

During initialization of rte_hash_table_ext and rte_hash_table_lru,
t->data_size_shl is calculated.  This member contains the number of
bits to shift left during calculation of the location of entries in
the hash table.  To determine the number of bits to shift left, the
size of the entry (as provided to the rte_table_hash_ext_create and
rte_table_hash_lru_create) has to be used instead of the size of the
key.

Signed-off-by: Balazs Nemeth <balazs.nemeth@intel.com>
---
 lib/librte_table/rte_table_hash_ext.c | 2 +-
 lib/librte_table/rte_table_hash_lru.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/librte_table/rte_table_hash_ext.c b/lib/librte_table/rte_table_hash_ext.c
index 17c16cd..fb3e6d2 100644
--- a/lib/librte_table/rte_table_hash_ext.c
+++ b/lib/librte_table/rte_table_hash_ext.c
@@ -221,7 +221,7 @@ rte_table_hash_ext_create(void *params, int socket_id, uint32_t entry_size)
 	/* Internal */
 	t->bucket_mask = t->n_buckets - 1;
 	t->key_size_shl = __builtin_ctzl(p->key_size);
-	t->data_size_shl = __builtin_ctzl(p->key_size);
+	t->data_size_shl = __builtin_ctzl(entry_size);
 
 	/* Tables */
 	table_meta_offset = 0;
diff --git a/lib/librte_table/rte_table_hash_lru.c b/lib/librte_table/rte_table_hash_lru.c
index d1a4984..bf92e81 100644
--- a/lib/librte_table/rte_table_hash_lru.c
+++ b/lib/librte_table/rte_table_hash_lru.c
@@ -192,7 +192,7 @@ rte_table_hash_lru_create(void *params, int socket_id, uint32_t entry_size)
 	/* Internal */
 	t->bucket_mask = t->n_buckets - 1;
 	t->key_size_shl = __builtin_ctzl(p->key_size);
-	t->data_size_shl = __builtin_ctzl(p->key_size);
+	t->data_size_shl = __builtin_ctzl(entry_size);
 
 	/* Tables */
 	table_meta_offset = 0;
-- 
1.9.1

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  parent reply	other threads:[~2014-09-11 17:41 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-11 17:47 [dpdk-dev] [PATCH 0/4] lib/librte_table: Fix bugs occuring in corner cases Balazs Nemeth
2014-09-11 17:47 ` [dpdk-dev] [PATCH 1/4] lib/librte_table: Fix empty bucket removal during entry deletion in rte_table_hash_ext Balazs Nemeth
2014-09-11 17:47 ` [dpdk-dev] [PATCH 2/4] lib/librte_table: Fix checking extended buckets in unoptimized case Balazs Nemeth
2014-09-11 17:47 ` Balazs Nemeth [this message]
2014-09-11 17:47 ` [dpdk-dev] [PATCH 4/4] lib/librte_table: Fix pointer calculations at initialization Balazs Nemeth
2014-09-11 17:56 ` [dpdk-dev] [PATCH 0/4] lib/librte_table: Fix bugs occuring in corner cases Dumitrescu, Cristian
2014-09-24 17:48 ` Thomas Monjalon

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